- Wavelengths outside the visible spectrum (like 200 nm which is ultraviolet, and 1000 nm which is infrared) do not cause a visual sensation in humans. - Out of the given wavelengths, only 500 nm falls within the visible spectrum (approximately 400-700 nm), corresponding to green light.
Consider the electromagnetic radiations having wavelengths 200 nm, 500 nm and 1000 nm. Which wavelength(s) of the following can make visual sensation to a human eye?
Asked in UPSC CDS 1 2017 · Topic: Optics (Optical Instruments: microscopes, telescopes, human eye)
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